Hertfordshire · London and the South East
Patchetts Green Thermal Roof Survey
Thermal imaging to find moisture and heat loss patterns in a roof across Patchetts Green, with drones and thermal imaging where they help. Get in touch for a price.
- Possible trapped moisture under a flat roof covering
- Patches of heat loss across the roof
- Water getting in at parapets and stacks
How a thermal roof survey works in Patchetts Green
Thermal imaging can also show where a roof is losing heat. Gaps in loft insulation and poorly insulated areas can stand out on the images. The difference shows most clearly when it is warm inside and cold outside. The report shows the images and explains what they may mean. We do not give energy ratings or heat loss calculations. If you are worried about heat escaping through the roof and damp patches with no obvious cause, a survey will tell you what’s going on, on commercial roofs, insulated roof spaces and pitched roof slopes alike.
Older buildings in small places like Patchetts Green may be listed or in a conservation area. A look by drone or thermal camera does not touch the roof, which suits a building where any change needs care. Check with the council before planning any work on a listed building or one in a conservation area.
We write the report in plain English, so it makes sense without any roofing background. Each point is backed by a photo where possible, and recommendations are put by urgency where it matters.
- Location
- Patchetts Green (WD25)
- Wider area
- Hertfordshire
- Prices
- From £400 inc. VAT
- Reports
- Written, with photos, emailed to you
- When we survey
- Weekdays and weekends
- Insurance
- PI and public liability insurance
- Phone
- 07833 053749
- Last updated
- 27 October 2026
What affects the cost of thermal roof surveys
Our packages start from £150, including VAT. The price for your roof depends on:
- Any need for thermal images or a drone flight
- House, block, shop or office
- Roof area
- Features like valleys, chimneys, dormers and parapets
We offer three survey packages: the Basic Survey from £150, the Standard Survey from £250 and the Premium Survey from £400, all including VAT. The price for your roof depends on its size, access and what you’d like to know.
Getting in touch
A little information up front helps. It is useful to include:
- Any deadline, such as an exchange date
- Pictures from the garden or a window, if you have them
- The reason for the survey, such as buying, a leak or storm damage
- Where the property is, with the postcode
When you are ready to go ahead, call 07833 053749 or use the contact form. We’ll suggest a package, agree the price and find a date, weekday or weekend.
Nearby places to Patchetts Green
More services for Patchetts Green
Landlords, agents and block managers in Patchetts Green
Landlords, agents and building managers in Patchetts Green and across Hertfordshire can book any of our surveys. For a price for a let property or a block, call 07833 053749 or send us an email.
Buyers’ agents can book surveys on behalf of their clients. The report is emailed, so it can go straight to your client.
Your questions about thermal roof surveys in Patchetts Green
Do you cover smaller places like Patchetts Green?
Yes, we do. We work right across London and the South East, from towns to the smallest villages. The journey is planned ahead, so it is useful to know about access.
Does a conservation area affect roof work in Patchetts Green?
Your council is the best source, with Historic England’s list for listed buildings. Both listing and conservation areas can limit changes of roofing material, and councils can also use Article 4 directions.
Will you go up on the roof?
Only when it’s safe. Most of what we need can be seen from safe viewpoints, the loft and, where applicable, a drone.
Do you test for asbestos?
No. Our report may flag materials that could contain asbestos, but confirming it is a job for a specialist asbestos surveyor. It may be present in buildings built or refurbished before 2000.
Is thermal imaging included in your surveys?
It is part of the Premium Survey, from £400. An in-person consultation and a follow-up 12 months later are included too. For bigger commercial roofs, we quote on size.
Do you carry professional indemnity insurance?
Our surveys are covered by professional indemnity and public liability insurance. Ask if you need details for a managing agent or building owner.
Will you fly a drone over my roof?
Yes, where it is applicable. Flights depend on the weather on the day and airspace rules. We hold a CAA Flyer ID and Operator ID.
Checking the roof from ground level
Inside, the loft is a good place to look, with care. Use a torch and stay on the joists or boards, and look for staining, damp timber or daylight coming through.
It helps to keep a record: when leaks happen, ground-level photos and any past roof work. Share it with us when booking, as it helps us focus the survey.
How it works
A survey visit follows a simple order: we hear what you’ve seen, inspect the roof from every safe vantage point, photograph what we find and make notes for the report. It normally takes between one and two hours at a typical home, with bigger or more complicated roofs taking longer. Cottages and farmhouses around Patchetts Green often have roofs at several levels, with lean-tos and outbuildings attached. We work round each section in turn, from the safest viewpoints.
- You tell us about the roof and any damp, leaks or cold rooms.
- The weather and surface conditions are recorded.
- We inspect the roof and take thermal images during the same visit.
- Moisture readings are used to check what the camera shows.
- The Premium report reaches you the same day, and we go through it with you in person.
Before we arrive
- Have keys ready for side gates, garages or roof access doors
- Have any questions written down, so nothing gets missed
- Let us know about parking before the day
Booking a survey
Not sure which survey you need? It is easiest to call 07833 053749 or use the contact form and describe the roof and what’s worrying you. We’ll explain the options and the price.
Read more
Thermal roof surveys in Patchetts Green: local notes
The wider area around Patchetts Green has a long history of building, with High Elms Manor about 3 miles north-west. Older homes in the wider area frequently have features worth a closer look, such as lead valleys, tall stacks and roofs that have been patched over the years, and the council can say whether a home is in a conservation area. Patchetts Green is about 2 miles from Elstree Aerodrome. If your survey includes the drone, we check the Drone Safety Map for restrictions before flying.
For site and facilities teams at buildings like Queens' School, big roofs are where aerial photos and thermal images show the most at once. Take an older house close to Church of St John the Baptist: older roofs can be steep and hard to see from the street, which is where close-up aerial shots and thermal images help. If you look after a shop, office or commercial unit, for instance near Harlequin Centre, large commercial roofs are often easiest to see by drone or thermal camera.
Patchetts Green is about 1 mile north of Bushey, in Hertfordshire. In Patchetts Green, as across Hertfordshire, every roof gets the same careful survey. Our Hertfordshire coverage includes Patchetts Green. You can also see our page for London.
Surveys in WD25 work the same way as everywhere else we cover. Streets in the area include Hilfield Lane, Stables End and Canter Close, all of which we cover. If you are just outside Patchetts Green, we cover Round Bush (1 mile north-east), Aldenham (1 mile north), Letchmore Heath (1 mile east), Kemprow (1 mile north-east) and Bushey (1 mile south). Larger places within reach include Hemel Hempstead (8 miles north-west), St Albans (6 miles north), Welwyn Garden City (11 miles north-east), Harpenden (10 miles north), Cheshunt (13 miles east) and Hatfield (8 miles north-east).
Around Patchetts Green
Typical jobs here are in homes near Highwood Primary School, Three Compasses Public House and Oxhey Park. Patchetts Green’s nearest station is Watford North station, about 1.7 miles west of the centre. Nearby you’ll also find Watford General Hospital (2.5 miles south-west) and Hertfordshire Fire Brigade Museum (1.8 miles south-west). Green spaces nearby include Stanmore Common.
When you need someone else
It helps to know what a survey will not do before you book:
- A structural engineer’s assessment
- Readings unaffected by sun, shade or reflections
- Seeing water directly, as the camera shows temperature, not moisture
If in doubt, ring 07833 053749 or email us and we will recommend the right survey before booking. The full list of what we check.
Roof types and parts we check
- Pitched roof slopes
- Insulated roof spaces
- Loft conversions
- Flat roofs
- Ceilings below the roof
- Commercial roofs
Tips that help
These tips come from what we see on roofs every week:
- Talk to us about the weather when booking
- Photograph damp patches with the date
- Keep the heating on as usual before a heat loss survey
- Note where damp appears and after what weather
Premium Surveys include an in-person consultation, giving you the chance to talk through the images and findings. A follow-up 12 months later is included as well.
Keep outlets and gutters clear so water drains off the roof quickly. The less water sits, the less can find its way beneath.